•Durable Cr-Mo Steel Construction: Made from high-strength chromium-molybdenum steel, this tool is heat-treated for extra durability, ensuring long-lasting performance and resistance to wear and deformation •Versatile 5-in-1 Functionality: Designed for various bottom bracket types: Hollowtech (44mm OD, 16-Notch): Compatible with many external threaded bottom brackets; BBR60 (41mm OD, 16-Notch): Suitable for Shimano BBR60, Ultegra 11-speed 6800 series, and Shimano MT-800; FSA386 (49mm OD, 16-Notch): Perfect for FSA MegaEvo and similar models; DUB16T (46mm OD, 12-Notch): Works with SRAM DUB, RaceFace Cinch, Rotor BSA30, Zipp Vuma, and more; BB9100 (39mm OD, 16-Notch): Fits for Shimano XTR BB93, Dura-Ace BB9000, and Token •Precision Heat-Treated: Built for toughness with heat treatment, offering high resistance to wear during frequent usage, making it reliable for professional mechanics or home use •Lightweight and Portable: Weighing approximately 219g, this compact tool is easy to carry and store, providing convenience without sacrificing performance Specifications: •Model: RR9300 •Material: Chrome-Molybdenum Steel •Process: Quenching Heat Treatment •Weight: About 219g Package included: •1 x 5 in 1 Bicycle Bottom Bracket Tool